掃一掃,加微信
聯系客服,馬上詢價
發布(bu)時間(jian):2021-12-20 15:24:47 人氣:98773 來源:
反壓狀態是不良的工作狀態,介質中的顆粒、雜質很容易進入密封面,使密封失效。磨軸的主要件為橡膠波紋管,且由于上端密封面處于不良潤滑狀態,動靜環之間的摩擦力矩大于橡膠波紋管與軸之間的傳遞轉矩,從而發生相對轉動。動、靜環輔助密封由于受到污水中的弱酸、弱堿的腐蝕,橡膠件已無彈性。渣漿鄲城泵用鄲城機械密封的工作原理要求鄲城機械密封內部無任何雜質,在組裝鄲城機械密封前要徹底清掃動環、靜環、軸套等部件,檢查動靜環表面是否存在劃痕、裂紋等缺陷,這些缺陷存在會造成鄲城機械密封嚴重漏泄。必要時可以制作工(gong)裝在組裝前水壓試(shi)驗(yan),檢查動(dong)靜環座是否存在影響(xiang)密封的缺陷(xian)。
渣漿鄲城泵用鄲城機械密封由于密封面變形所引起的,而且鄲城機械密封面泄漏的概率是很高的。如果泵在啟動時就發生鄲城泵用鄲城機械密封泄漏,而拆查密封面時看不見有損壞的地方,這時就應該用平晶檢查鄲城機械密封的(de)(de)變(bian)形情(qing)況(kuang)。如果發生(sheng)變(bian)形,用平晶檢查密封面(mian)的(de)(de)干涉帶的(de)(de)變(bian)化情(qing)況(kuang),密封面(mian)變(bian)形存在(zai)于動環和(he)靜環之間。
壓缸體(ti)動(dong)(dong)(dong)(dong)(dong)態密(mi)封(feng)(feng)系(xi)統(tong)采用(yong)(yong)的(de)(de)是主密(mi)封(feng)(feng)設計(ji),一(yi)般都用(yong)(yong)U型密(mi)封(feng)(feng)圈。液(ye)壓缸體(ti)的(de)(de)往復(fu)式動(dong)(dong)(dong)(dong)(dong)態密(mi)封(feng)(feng)系(xi)統(tong)的(de)(de)設計(ji),開始使(shi)用(yong)(yong)了更加復(fu)雜的(de)(de)U型圈和(he)同軸(zhou)(zhou)密(mi)封(feng)(feng)組件的(de)(de)復(fu)合式設計(ji)。密(mi)封(feng)(feng)的(de)(de)靜(jing)環(huan)通(tong)常固定在(zai)殼體(ti)上,動(dong)(dong)(dong)(dong)(dong)環(huan)通(tong)過彈簧、彈簧座(zuo)與(yu)軸(zhou)(zhou)一(yi)同旋轉。靜(jing)環(huan)與(yu)殼體(ti)、動(dong)(dong)(dong)(dong)(dong)環(huan)與(yu)軸(zhou)(zhou)形成的(de)(de)間(jian)隙用(yong)(yong)成型填料(liao)密(mi)封(feng)(feng)。在(zai)動(dong)(dong)(dong)(dong)(dong)環(huan)和(he)靜(jing)環(huan)接(jie)(jie)觸的(de)(de)端面形成相對滑動(dong)(dong)(dong)(dong)(dong)面,即動(dong)(dong)(dong)(dong)(dong)密(mi)封(feng)(feng)面。為(wei)保證密(mi)封(feng)(feng)良好(hao),動(dong)(dong)(dong)(dong)(dong)密(mi)封(feng)(feng)面應十(shi)分平(ping)直和(he)光潔。彈簧力和(he)被密(mi)封(feng)(feng)的(de)(de)流體(ti)壓力使(shi)動(dong)(dong)(dong)(dong)(dong)環(huan)貼(tie)緊靜(jing)環(huan)。因動(dong)(dong)(dong)(dong)(dong)環(huan)與(yu)軸(zhou)(zhou)通(tong)過彈簧連接(jie)(jie),動(dong)(dong)(dong)(dong)(dong)環(huan)和(he)靜(jing)環(huan)間(jian)貼(tie)合性(xing)受軸(zhou)(zhou)的(de)(de)振動(dong)(dong)(dong)(dong)(dong)和(he)擺(bai)動(dong)(dong)(dong)(dong)(dong)影響較小。靜(jing)環(huan)一(yi)般常用(yong)(yong)潤滑性(xing)好(hao)的(de)(de)軟質材料(liao)如石墨、填充聚(ju)四氟乙烯等,動(dong)(dong)(dong)(dong)(dong)環(huan)多用(yong)(yong)硬質合金、陶瓷等材料(liao)制造。